Re: [Dovecot] Question about log entry?

Knute Johnson wrote:

dovecot: POP3(knute): mbox sync: Expunged message reappeared in mailbox /var/mail/knute (UID 585 < 379664, seq=2, idx_msgs=0): 1 Time(s) dovecot: POP3(knute): mbox sync: UID inserted in the middle of mailbox /var/mail/knute (379664 > 585, seq=2, idx_msgs=1): 1 Time(s)

I've been getting these lately. Any idea what causes them? Should I worry about it?

http://www.dovecot.org/list/dovecot/2006-November/017360.html